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Composite self-retaining sutures and method

a self-retaining suture and composite technology, applied in the field of surgical procedures, can solve the problems that the creation and/or deployment of retainer features of self-retaining sutures may be difficult to achieve, and achieve the effects of high strength and flexibility, enhanced creation, elevation and deployment of retainers

Active Publication Date: 2012-02-21
ETHICON INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides improved self-retaining sutures that have enhanced ability to anchor into the surrounding tissue, enhanced tissue holding capabilities, enhanced maximum load, and enhanced clinical performance. The invention also provides methods for making self-retaining sutures using a composite filament made of two or more different materials. The composite filament has a core made from one material that has high strength and flexibility, and a sheath made from a different material that enhances the creation, elevation, deployment, and engagement of the retainers on the suture. The details of one or more embodiments are set forth in the description below.

Problems solved by technology

Furthermore, the creation and or deployment of retainer features of self-retaining sutures may be difficult to achieve.

Method used

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  • Composite self-retaining sutures and method
  • Composite self-retaining sutures and method
  • Composite self-retaining sutures and method

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Embodiment Construction

Definitions

[0027]Definitions of certain terms that may be used hereinafter include the following.

[0028]“Self-retaining system” refers to a self-retaining suture together with devices for deploying the suture into tissue. Such deployment devices include, without limitation, suture needles and other deployment devices as well as sufficiently rigid and sharp ends on the suture itself to penetrate tissue.

[0029]“Self-retaining suture” refers to a suture that comprises features on the suture filament for engaging tissue without the need for a knot or suture anchor.

[0030]“Tissue retainer” (or simply “retainer”) or “barb” refers to a physical feature of a suture filament which is adapted to mechanically engage tissue and resist movement of the suture in at least one axial directions. By way of example only, tissue retainer or retainers can include hooks, projections, barbs, darts, extensions, bulges, anchors, protuberances, spurs, bumps, points, cogs, tissue engagers, traction devices, surf...

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Abstract

A self-retaining suture comprises a composite filament. The filament has retainers on the surface such that the filament can engage and retain tissue without knots. The filament comprises at least two materials having different properties. A surface material of the filament has properties which enhance the formation, elevation and / or deployment of the retainers. A core material of the filament has properties which enhance the tensile strength of the filament. The surgical filament is thin and flexible and may be used for suturing. Methods for manufacturing the filament and retainers are also described.

Description

FIELD OF INVENTION[0001]The present invention relates generally to self-retaining systems for surgical procedures, methods of manufacturing self-retaining systems for surgical procedures, and uses thereof.BACKGROUND OF INVENTION[0002]Wound closure devices such as sutures, staples and tacks have been widely used in superficial and deep surgical procedures in humans and animals for closing wounds, repairing traumatic injuries or defects, joining tissues together (bringing severed tissues into approximation, closing an anatomical space, affixing single or multiple tissue layers together, creating an anastomosis between two hollow / luminal structures, adjoining tissues, attaching or reattaching tissues to their proper anatomical location), attaching foreign elements to tissues (affixing medical implants, devices, prostheses and other functional or supportive devices), and for repositioning tissues to new anatomical locations (repairs, tissue elevations, tissue grafting and related proced...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): A61B17/04
CPCA61B17/06166A61B2017/00004A61B2017/00858A61B2017/06057A61B2017/06176
Inventor GORALTCHOUK, ALEXEINAIMAGON, ALEXANDERCUMMINGS, GERALD F.DRUBETSKY, LEVHERRMANN, ROBERT A.
Owner ETHICON INC
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